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s3: Remove some unused code
[Samba/gebeck_regimport.git] / source3 / libsmb / clifsinfo.c
blob08c0252eb831785ede72b18f44b34e6440e584af
1 /*
2 Unix SMB/CIFS implementation.
3 FS info functions
4 Copyright (C) Stefan (metze) Metzmacher 2003
5 Copyright (C) Jeremy Allison 2007
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "../libcli/auth/spnego.h"
23 #include "ntlmssp.h"
24
25 /****************************************************************************
26 Get UNIX extensions version info.
27 ****************************************************************************/
28
29 struct cli_unix_extensions_version_state {
30 uint16_t setup[1];
31 uint8_t param[2];
32 uint16_t major, minor;
33 uint32_t caplow, caphigh;
34 };
35
36 static void cli_unix_extensions_version_done(struct tevent_req *subreq);
37
38 struct tevent_req *cli_unix_extensions_version_send(TALLOC_CTX *mem_ctx,
39 struct tevent_context *ev,
40 struct cli_state *cli)
41 {
42 struct tevent_req *req, *subreq;
43 struct cli_unix_extensions_version_state *state;
44
45 req = tevent_req_create(mem_ctx, &state,
46 struct cli_unix_extensions_version_state);
47 if (req == NULL) {
48 return NULL;
49 }
50 SSVAL(state->setup, 0, TRANSACT2_QFSINFO);
51 SSVAL(state->param, 0, SMB_QUERY_CIFS_UNIX_INFO);
52
53 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
54 NULL, 0, 0, 0,
55 state->setup, 1, 0,
56 state->param, 2, 0,
57 NULL, 0, 560);
58 if (tevent_req_nomem(subreq, req)) {
59 return tevent_req_post(req, ev);
60 }
61 tevent_req_set_callback(subreq, cli_unix_extensions_version_done, req);
62 return req;
63 }
64
65 static void cli_unix_extensions_version_done(struct tevent_req *subreq)
66 {
67 struct tevent_req *req = tevent_req_callback_data(
68 subreq, struct tevent_req);
69 struct cli_unix_extensions_version_state *state = tevent_req_data(
70 req, struct cli_unix_extensions_version_state);
71 uint8_t *data;
72 uint32_t num_data;
73 NTSTATUS status;
74
75 status = cli_trans_recv(subreq, state, NULL, 0, NULL, NULL, 0, NULL,
76 &data, 12, &num_data);
77 TALLOC_FREE(subreq);
78 if (!NT_STATUS_IS_OK(status)) {
79 tevent_req_nterror(req, status);
80 return;
81 }
82
83 state->major = SVAL(data, 0);
84 state->minor = SVAL(data, 2);
85 state->caplow = IVAL(data, 4);
86 state->caphigh = IVAL(data, 8);
87 TALLOC_FREE(data);
88 tevent_req_done(req);
89 }
90
91 NTSTATUS cli_unix_extensions_version_recv(struct tevent_req *req,
92 uint16_t *pmajor, uint16_t *pminor,
93 uint32_t *pcaplow,
94 uint32_t *pcaphigh)
95 {
96 struct cli_unix_extensions_version_state *state = tevent_req_data(
97 req, struct cli_unix_extensions_version_state);
98 NTSTATUS status;
99
100 if (tevent_req_is_nterror(req, &status)) {
101 return status;
102 }
103 *pmajor = state->major;
104 *pminor = state->minor;
105 *pcaplow = state->caplow;
106 *pcaphigh = state->caphigh;
107 return NT_STATUS_OK;
108 }
109
110 NTSTATUS cli_unix_extensions_version(struct cli_state *cli, uint16 *pmajor,
111 uint16 *pminor, uint32 *pcaplow,
112 uint32 *pcaphigh)
113 {
114 TALLOC_CTX *frame = talloc_stackframe();
115 struct event_context *ev;
116 struct tevent_req *req;
117 NTSTATUS status = NT_STATUS_OK;
118
119 if (cli_has_async_calls(cli)) {
120 /*
121 * Can't use sync call while an async call is in flight
122 */
123 status = NT_STATUS_INVALID_PARAMETER;
124 goto fail;
125 }
126
127 ev = event_context_init(frame);
128 if (ev == NULL) {
129 status = NT_STATUS_NO_MEMORY;
130 goto fail;
131 }
132
133 req = cli_unix_extensions_version_send(frame, ev, cli);
134 if (req == NULL) {
135 status = NT_STATUS_NO_MEMORY;
136 goto fail;
137 }
138
139 if (!tevent_req_poll(req, ev)) {
140 status = map_nt_error_from_unix(errno);
141 goto fail;
142 }
143
144 status = cli_unix_extensions_version_recv(req, pmajor, pminor, pcaplow,
145 pcaphigh);
146 if (NT_STATUS_IS_OK(status)) {
147 cli->posix_capabilities = *pcaplow;
148 }
149 fail:
150 TALLOC_FREE(frame);
151 if (!NT_STATUS_IS_OK(status)) {
152 cli_set_error(cli, status);
153 }
154 return status;
155 }
156
157 /****************************************************************************
158 Set UNIX extensions capabilities.
159 ****************************************************************************/
160
161 struct cli_set_unix_extensions_capabilities_state {
162 uint16_t setup[1];
163 uint8_t param[4];
164 uint8_t data[12];
165 };
166
167 static void cli_set_unix_extensions_capabilities_done(
168 struct tevent_req *subreq);
169
170 struct tevent_req *cli_set_unix_extensions_capabilities_send(
171 TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct cli_state *cli,
172 uint16_t major, uint16_t minor, uint32_t caplow, uint32_t caphigh)
173 {
174 struct tevent_req *req, *subreq;
175 struct cli_set_unix_extensions_capabilities_state *state;
176
177 req = tevent_req_create(
178 mem_ctx, &state,
179 struct cli_set_unix_extensions_capabilities_state);
180 if (req == NULL) {
181 return NULL;
182 }
183
184 SSVAL(state->setup+0, 0, TRANSACT2_SETFSINFO);
185
186 SSVAL(state->param, 0, 0);
187 SSVAL(state->param, 2, SMB_SET_CIFS_UNIX_INFO);
188
189 SSVAL(state->data, 0, major);
190 SSVAL(state->data, 2, minor);
191 SIVAL(state->data, 4, caplow);
192 SIVAL(state->data, 8, caphigh);
193
194 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
195 NULL, 0, 0, 0,
196 state->setup, 1, 0,
197 state->param, 4, 0,
198 state->data, 12, 560);
199 if (tevent_req_nomem(subreq, req)) {
200 return tevent_req_post(req, ev);
201 }
202 tevent_req_set_callback(
203 subreq, cli_set_unix_extensions_capabilities_done, req);
204 return req;
205 }
206
207 static void cli_set_unix_extensions_capabilities_done(
208 struct tevent_req *subreq)
209 {
210 NTSTATUS status = cli_trans_recv(subreq, NULL, NULL, 0, NULL,
211 NULL, 0, NULL, NULL, 0, NULL);
212 tevent_req_simple_finish_ntstatus(subreq, status);
213 }
214
215 NTSTATUS cli_set_unix_extensions_capabilities_recv(struct tevent_req *req)
216 {
217 return tevent_req_simple_recv_ntstatus(req);
218 }
219
220 NTSTATUS cli_set_unix_extensions_capabilities(struct cli_state *cli,
221 uint16 major, uint16 minor,
222 uint32 caplow, uint32 caphigh)
223 {
224 struct tevent_context *ev;
225 struct tevent_req *req;
226 NTSTATUS status = NT_STATUS_NO_MEMORY;
227
228 if (cli_has_async_calls(cli)) {
229 return NT_STATUS_INVALID_PARAMETER;
230 }
231 ev = tevent_context_init(talloc_tos());
232 if (ev == NULL) {
233 goto fail;
234 }
235 req = cli_set_unix_extensions_capabilities_send(
236 ev, ev, cli, major, minor, caplow, caphigh);
237 if (req == NULL) {
238 goto fail;
239 }
240 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
241 goto fail;
242 }
243 status = cli_set_unix_extensions_capabilities_recv(req);
244 fail:
245 TALLOC_FREE(ev);
246 if (!NT_STATUS_IS_OK(status)) {
247 cli_set_error(cli, status);
248 }
249 return status;
250 }
251
252 struct cli_get_fs_attr_info_state {
253 uint16_t setup[1];
254 uint8_t param[2];
255 uint32_t fs_attr;
256 };
257
258 static void cli_get_fs_attr_info_done(struct tevent_req *subreq);
259
260 struct tevent_req *cli_get_fs_attr_info_send(TALLOC_CTX *mem_ctx,
261 struct tevent_context *ev,
262 struct cli_state *cli)
263 {
264 struct tevent_req *subreq, *req;
265 struct cli_get_fs_attr_info_state *state;
266
267 req = tevent_req_create(mem_ctx, &state,
268 struct cli_get_fs_attr_info_state);
269 if (req == NULL) {
270 return NULL;
271 }
272 SSVAL(state->setup+0, 0, TRANSACT2_QFSINFO);
273 SSVAL(state->param+0, 0, SMB_QUERY_FS_ATTRIBUTE_INFO);
274
275 subreq = cli_trans_send(state, ev, cli, SMBtrans2,
276 NULL, 0, 0, 0,
277 state->setup, 1, 0,
278 state->param, 2, 0,
279 NULL, 0, 560);
280 if (tevent_req_nomem(subreq, req)) {
281 return tevent_req_post(req, ev);
282 }
283 tevent_req_set_callback(subreq, cli_get_fs_attr_info_done, req);
284 return req;
285 }
286
287 static void cli_get_fs_attr_info_done(struct tevent_req *subreq)
288 {
289 struct tevent_req *req = tevent_req_callback_data(
290 subreq, struct tevent_req);
291 struct cli_get_fs_attr_info_state *state = tevent_req_data(
292 req, struct cli_get_fs_attr_info_state);
293 uint8_t *data;
294 uint32_t num_data;
295 NTSTATUS status;
296
297 status = cli_trans_recv(subreq, talloc_tos(), NULL, 0, NULL,
298 NULL, 0, NULL, &data, 12, &num_data);
299 TALLOC_FREE(subreq);
300 if (!NT_STATUS_IS_OK(status)) {
301 tevent_req_nterror(req, status);
302 return;
303 }
304 state->fs_attr = IVAL(data, 0);
305 TALLOC_FREE(data);
306 tevent_req_done(req);
307 }
308
309 NTSTATUS cli_get_fs_attr_info_recv(struct tevent_req *req, uint32_t *fs_attr)
310 {
311 struct cli_get_fs_attr_info_state *state = tevent_req_data(
312 req, struct cli_get_fs_attr_info_state);
313 NTSTATUS status;
314
315 if (tevent_req_is_nterror(req, &status)) {
316 return status;
317 }
318 *fs_attr = state->fs_attr;
319 return NT_STATUS_OK;
320 }
321
322 NTSTATUS cli_get_fs_attr_info(struct cli_state *cli, uint32_t *fs_attr)
323 {
324 struct tevent_context *ev;
325 struct tevent_req *req;
326 NTSTATUS status = NT_STATUS_NO_MEMORY;
327
328 if (cli_has_async_calls(cli)) {
329 return NT_STATUS_INVALID_PARAMETER;
330 }
331 ev = tevent_context_init(talloc_tos());
332 if (ev == NULL) {
333 goto fail;
334 }
335 req = cli_get_fs_attr_info_send(ev, ev, cli);
336 if (req == NULL) {
337 goto fail;
338 }
339 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
340 goto fail;
341 }
342 status = cli_get_fs_attr_info_recv(req, fs_attr);
343 fail:
344 TALLOC_FREE(ev);
345 if (!NT_STATUS_IS_OK(status)) {
346 cli_set_error(cli, status);
347 }
348 return status;
349 }
350
351 bool cli_get_fs_volume_info(struct cli_state *cli, fstring volume_name, uint32 *pserial_number, time_t *pdate)
352 {
353 bool ret = False;
354 uint16 setup;
355 char param[2];
356 char *rparam=NULL, *rdata=NULL;
357 unsigned int rparam_count=0, rdata_count=0;
358 unsigned int nlen;
359
360 setup = TRANSACT2_QFSINFO;
361
362 SSVAL(param,0,SMB_QUERY_FS_VOLUME_INFO);
363
364 if (!cli_send_trans(cli, SMBtrans2,
365 NULL,
366 0, 0,
367 &setup, 1, 0,
368 param, 2, 0,
369 NULL, 0, 560)) {
370 goto cleanup;
371 }
372
373 if (!cli_receive_trans(cli, SMBtrans2,
374 &rparam, &rparam_count,
375 &rdata, &rdata_count)) {
376 goto cleanup;
377 }
378
379 if (cli_is_error(cli)) {
380 ret = False;
381 goto cleanup;
382 } else {
383 ret = True;
384 }
385
386 if (rdata_count < 19) {
387 goto cleanup;
388 }
389
390 if (pdate) {
391 struct timespec ts;
392 ts = interpret_long_date(rdata);
393 *pdate = ts.tv_sec;
394 }
395 if (pserial_number) {
396 *pserial_number = IVAL(rdata,8);
397 }
398 nlen = IVAL(rdata,12);
399 clistr_pull(cli->inbuf, volume_name, rdata + 18, sizeof(fstring),
400 nlen, STR_UNICODE);
401
402 /* todo: but not yet needed
403 * return the other stuff
404 */
405
406 cleanup:
407 SAFE_FREE(rparam);
408 SAFE_FREE(rdata);
409
410 return ret;
411 }
412
413 bool cli_get_fs_full_size_info(struct cli_state *cli,
414 uint64_t *total_allocation_units,
415 uint64_t *caller_allocation_units,
416 uint64_t *actual_allocation_units,
417 uint64_t *sectors_per_allocation_unit,
418 uint64_t *bytes_per_sector)
419 {
420 bool ret = False;
421 uint16 setup;
422 char param[2];
423 char *rparam=NULL, *rdata=NULL;
424 unsigned int rparam_count=0, rdata_count=0;
425
426 setup = TRANSACT2_QFSINFO;
427
428 SSVAL(param,0,SMB_FS_FULL_SIZE_INFORMATION);
429
430 if (!cli_send_trans(cli, SMBtrans2,
431 NULL,
432 0, 0,
433 &setup, 1, 0,
434 param, 2, 0,
435 NULL, 0, 560)) {
436 goto cleanup;
437 }
438
439 if (!cli_receive_trans(cli, SMBtrans2,
440 &rparam, &rparam_count,
441 &rdata, &rdata_count)) {
442 goto cleanup;
443 }
444
445 if (cli_is_error(cli)) {
446 ret = False;
447 goto cleanup;
448 } else {
449 ret = True;
450 }
451
452 if (rdata_count != 32) {
453 goto cleanup;
454 }
455
456 if (total_allocation_units) {
457 *total_allocation_units = BIG_UINT(rdata, 0);
458 }
459 if (caller_allocation_units) {
460 *caller_allocation_units = BIG_UINT(rdata,8);
461 }
462 if (actual_allocation_units) {
463 *actual_allocation_units = BIG_UINT(rdata,16);
464 }
465 if (sectors_per_allocation_unit) {
466 *sectors_per_allocation_unit = IVAL(rdata,24);
467 }
468 if (bytes_per_sector) {
469 *bytes_per_sector = IVAL(rdata,28);
470 }
471
472 cleanup:
473 SAFE_FREE(rparam);
474 SAFE_FREE(rdata);
475
476 return ret;
477 }
478
479 bool cli_get_posix_fs_info(struct cli_state *cli,
480 uint32 *optimal_transfer_size,
481 uint32 *block_size,
482 uint64_t *total_blocks,
483 uint64_t *blocks_available,
484 uint64_t *user_blocks_available,
485 uint64_t *total_file_nodes,
486 uint64_t *free_file_nodes,
487 uint64_t *fs_identifier)
488 {
489 bool ret = False;
490 uint16 setup;
491 char param[2];
492 char *rparam=NULL, *rdata=NULL;
493 unsigned int rparam_count=0, rdata_count=0;
494
495 setup = TRANSACT2_QFSINFO;
496
497 SSVAL(param,0,SMB_QUERY_POSIX_FS_INFO);
498
499 if (!cli_send_trans(cli, SMBtrans2,
500 NULL,
501 0, 0,
502 &setup, 1, 0,
503 param, 2, 0,
504 NULL, 0, 560)) {
505 goto cleanup;
506 }
507
508 if (!cli_receive_trans(cli, SMBtrans2,
509 &rparam, &rparam_count,
510 &rdata, &rdata_count)) {
511 goto cleanup;
512 }
513
514 if (cli_is_error(cli)) {
515 ret = False;
516 goto cleanup;
517 } else {
518 ret = True;
519 }
520
521 if (rdata_count != 56) {
522 goto cleanup;
523 }
524
525 if (optimal_transfer_size) {
526 *optimal_transfer_size = IVAL(rdata, 0);
527 }
528 if (block_size) {
529 *block_size = IVAL(rdata,4);
530 }
531 if (total_blocks) {
532 *total_blocks = BIG_UINT(rdata,8);
533 }
534 if (blocks_available) {
535 *blocks_available = BIG_UINT(rdata,16);
536 }
537 if (user_blocks_available) {
538 *user_blocks_available = BIG_UINT(rdata,24);
539 }
540 if (total_file_nodes) {
541 *total_file_nodes = BIG_UINT(rdata,32);
542 }
543 if (free_file_nodes) {
544 *free_file_nodes = BIG_UINT(rdata,40);
545 }
546 if (fs_identifier) {
547 *fs_identifier = BIG_UINT(rdata,48);
548 }
549
550 cleanup:
551 SAFE_FREE(rparam);
552 SAFE_FREE(rdata);
553
554 return ret;
555 }
556
557
558 /******************************************************************************
559 Send/receive the request encryption blob.
560 ******************************************************************************/
561
562 static NTSTATUS enc_blob_send_receive(struct cli_state *cli, DATA_BLOB *in, DATA_BLOB *out, DATA_BLOB *param_out)
563 {
564 uint16 setup;
565 char param[4];
566 char *rparam=NULL, *rdata=NULL;
567 unsigned int rparam_count=0, rdata_count=0;
568 NTSTATUS status = NT_STATUS_OK;
569
570 setup = TRANSACT2_SETFSINFO;
571
572 SSVAL(param,0,0);
573 SSVAL(param,2,SMB_REQUEST_TRANSPORT_ENCRYPTION);
574
575 if (!cli_send_trans(cli, SMBtrans2,
576 NULL,
577 0, 0,
578 &setup, 1, 0,
579 param, 4, 0,
580 (char *)in->data, in->length, CLI_BUFFER_SIZE)) {
581 status = cli_nt_error(cli);
582 goto out;
583 }
584
585 if (!cli_receive_trans(cli, SMBtrans2,
586 &rparam, &rparam_count,
587 &rdata, &rdata_count)) {
588 status = cli_nt_error(cli);
589 goto out;
590 }
591
592 if (cli_is_error(cli)) {
593 status = cli_nt_error(cli);
594 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
595 goto out;
596 }
597 }
598
599 *out = data_blob(rdata, rdata_count);
600 *param_out = data_blob(rparam, rparam_count);
601
602 out:
603
604 SAFE_FREE(rparam);
605 SAFE_FREE(rdata);
606 return status;
607 }
608
609 /******************************************************************************
610 Make a client state struct.
611 ******************************************************************************/
612
613 static struct smb_trans_enc_state *make_cli_enc_state(enum smb_trans_enc_type smb_enc_type)
614 {
615 struct smb_trans_enc_state *es = NULL;
616 es = SMB_MALLOC_P(struct smb_trans_enc_state);
617 if (!es) {
618 return NULL;
619 }
620 ZERO_STRUCTP(es);
621 es->smb_enc_type = smb_enc_type;
622
623 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
624 if (smb_enc_type == SMB_TRANS_ENC_GSS) {
625 es->s.gss_state = SMB_MALLOC_P(struct smb_tran_enc_state_gss);
626 if (!es->s.gss_state) {
627 SAFE_FREE(es);
628 return NULL;
629 }
630 ZERO_STRUCTP(es->s.gss_state);
631 }
632 #endif
633 return es;
634 }
635
636 /******************************************************************************
637 Start a raw ntlmssp encryption.
638 ******************************************************************************/
639
640 NTSTATUS cli_raw_ntlm_smb_encryption_start(struct cli_state *cli,
641 const char *user,
642 const char *pass,
643 const char *domain)
644 {
645 DATA_BLOB blob_in = data_blob_null;
646 DATA_BLOB blob_out = data_blob_null;
647 DATA_BLOB param_out = data_blob_null;
648 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
649 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_NTLM);
650
651 if (!es) {
652 return NT_STATUS_NO_MEMORY;
653 }
654 status = ntlmssp_client_start(&es->s.ntlmssp_state);
655 if (!NT_STATUS_IS_OK(status)) {
656 goto fail;
657 }
658
659 ntlmssp_want_feature(es->s.ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
660 es->s.ntlmssp_state->neg_flags |= (NTLMSSP_NEGOTIATE_SIGN|NTLMSSP_NEGOTIATE_SEAL);
661
662 if (!NT_STATUS_IS_OK(status = ntlmssp_set_username(es->s.ntlmssp_state, user))) {
663 goto fail;
664 }
665 if (!NT_STATUS_IS_OK(status = ntlmssp_set_domain(es->s.ntlmssp_state, domain))) {
666 goto fail;
667 }
668 if (!NT_STATUS_IS_OK(status = ntlmssp_set_password(es->s.ntlmssp_state, pass))) {
669 goto fail;
670 }
671
672 do {
673 status = ntlmssp_update(es->s.ntlmssp_state, blob_in, &blob_out);
674 data_blob_free(&blob_in);
675 data_blob_free(&param_out);
676 if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(status)) {
677 NTSTATUS trans_status = enc_blob_send_receive(cli,
678 &blob_out,
679 &blob_in,
680 &param_out);
681 if (!NT_STATUS_EQUAL(trans_status,
682 NT_STATUS_MORE_PROCESSING_REQUIRED) &&
683 !NT_STATUS_IS_OK(trans_status)) {
684 status = trans_status;
685 } else {
686 if (param_out.length == 2) {
687 es->enc_ctx_num = SVAL(param_out.data, 0);
688 }
689 }
690 }
691 data_blob_free(&blob_out);
692 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
693
694 data_blob_free(&blob_in);
695
696 if (NT_STATUS_IS_OK(status)) {
697 /* Replace the old state, if any. */
698 if (cli->trans_enc_state) {
699 common_free_encryption_state(&cli->trans_enc_state);
700 }
701 cli->trans_enc_state = es;
702 cli->trans_enc_state->enc_on = True;
703 es = NULL;
704 }
705
706 fail:
707
708 common_free_encryption_state(&es);
709 return status;
710 }
711
712 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
713
714 #ifndef SMB_GSS_REQUIRED_FLAGS
715 #define SMB_GSS_REQUIRED_FLAGS (GSS_C_CONF_FLAG|GSS_C_INTEG_FLAG|GSS_C_MUTUAL_FLAG|GSS_C_REPLAY_FLAG|GSS_C_SEQUENCE_FLAG)
716 #endif
717
718 /******************************************************************************
719 Get client gss blob to send to a server.
720 ******************************************************************************/
721
722 static NTSTATUS make_cli_gss_blob(struct smb_trans_enc_state *es,
723 const char *service,
724 const char *host,
725 NTSTATUS status_in,
726 DATA_BLOB spnego_blob_in,
727 DATA_BLOB *p_blob_out)
728 {
729 const char *krb_mechs[] = {OID_KERBEROS5, NULL};
730 OM_uint32 ret;
731 OM_uint32 min;
732 gss_name_t srv_name;
733 gss_buffer_desc input_name;
734 gss_buffer_desc *p_tok_in;
735 gss_buffer_desc tok_out, tok_in;
736 DATA_BLOB blob_out = data_blob_null;
737 DATA_BLOB blob_in = data_blob_null;
738 char *host_princ_s = NULL;
739 OM_uint32 ret_flags = 0;
740 NTSTATUS status = NT_STATUS_OK;
741
742 gss_OID_desc nt_hostbased_service =
743 {10, CONST_DISCARD(char *,"\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
744
745 memset(&tok_out, '\0', sizeof(tok_out));
746
747 /* Get a ticket for the service@host */
748 if (asprintf(&host_princ_s, "%s@%s", service, host) == -1) {
749 return NT_STATUS_NO_MEMORY;
750 }
751
752 input_name.value = host_princ_s;
753 input_name.length = strlen(host_princ_s) + 1;
754
755 ret = gss_import_name(&min,
756 &input_name,
757 &nt_hostbased_service,
758 &srv_name);
759
760 if (ret != GSS_S_COMPLETE) {
761 SAFE_FREE(host_princ_s);
762 return map_nt_error_from_gss(ret, min);
763 }
764
765 if (spnego_blob_in.length == 0) {
766 p_tok_in = GSS_C_NO_BUFFER;
767 } else {
768 /* Remove the SPNEGO wrapper */
769 if (!spnego_parse_auth_response(spnego_blob_in, status_in, OID_KERBEROS5, &blob_in)) {
770 status = NT_STATUS_UNSUCCESSFUL;
771 goto fail;
772 }
773 tok_in.value = blob_in.data;
774 tok_in.length = blob_in.length;
775 p_tok_in = &tok_in;
776 }
777
778 ret = gss_init_sec_context(&min,
779 GSS_C_NO_CREDENTIAL, /* Use our default cred. */
780 &es->s.gss_state->gss_ctx,
781 srv_name,
782 GSS_C_NO_OID, /* default OID. */
783 GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_DELEG_FLAG,
784 GSS_C_INDEFINITE, /* requested ticket lifetime. */
785 NULL, /* no channel bindings */
786 p_tok_in,
787 NULL, /* ignore mech type */
788 &tok_out,
789 &ret_flags,
790 NULL); /* ignore time_rec */
791
792 status = map_nt_error_from_gss(ret, min);
793 if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
794 ADS_STATUS adss = ADS_ERROR_GSS(ret, min);
795 DEBUG(10,("make_cli_gss_blob: gss_init_sec_context failed with %s\n",
796 ads_errstr(adss)));
797 goto fail;
798 }
799
800 if ((ret_flags & SMB_GSS_REQUIRED_FLAGS) != SMB_GSS_REQUIRED_FLAGS) {
801 status = NT_STATUS_ACCESS_DENIED;
802 }
803
804 blob_out = data_blob(tok_out.value, tok_out.length);
805
806 /* Wrap in an SPNEGO wrapper */
807 *p_blob_out = gen_negTokenTarg(krb_mechs, blob_out);
808
809 fail:
810
811 data_blob_free(&blob_out);
812 data_blob_free(&blob_in);
813 SAFE_FREE(host_princ_s);
814 gss_release_name(&min, &srv_name);
815 if (tok_out.value) {
816 gss_release_buffer(&min, &tok_out);
817 }
818 return status;
819 }
820
821 /******************************************************************************
822 Start a SPNEGO gssapi encryption context.
823 ******************************************************************************/
824
825 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
826 {
827 DATA_BLOB blob_recv = data_blob_null;
828 DATA_BLOB blob_send = data_blob_null;
829 DATA_BLOB param_out = data_blob_null;
830 NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
831 fstring fqdn;
832 const char *servicename;
833 struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_GSS);
834
835 if (!es) {
836 return NT_STATUS_NO_MEMORY;
837 }
838
839 name_to_fqdn(fqdn, cli->desthost);
840 strlower_m(fqdn);
841
842 servicename = "cifs";
843 status = make_cli_gss_blob(es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
844 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
845 servicename = "host";
846 status = make_cli_gss_blob(es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
847 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
848 goto fail;
849 }
850 }
851
852 do {
853 data_blob_free(&blob_recv);
854 status = enc_blob_send_receive(cli, &blob_send, &blob_recv, &param_out);
855 if (param_out.length == 2) {
856 es->enc_ctx_num = SVAL(param_out.data, 0);
857 }
858 data_blob_free(&blob_send);
859 status = make_cli_gss_blob(es, servicename, fqdn, status, blob_recv, &blob_send);
860 } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
861 data_blob_free(&blob_recv);
862
863 if (NT_STATUS_IS_OK(status)) {
864 /* Replace the old state, if any. */
865 if (cli->trans_enc_state) {
866 common_free_encryption_state(&cli->trans_enc_state);
867 }
868 cli->trans_enc_state = es;
869 cli->trans_enc_state->enc_on = True;
870 es = NULL;
871 }
872
873 fail:
874
875 common_free_encryption_state(&es);
876 return status;
877 }
878 #else
879 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
880 {
881 return NT_STATUS_NOT_SUPPORTED;
882 }
883 #endif
884
885 /********************************************************************
886 Ensure a connection is encrypted.
887 ********************************************************************/
888
889 NTSTATUS cli_force_encryption(struct cli_state *c,
890 const char *username,
891 const char *password,
892 const char *domain)
893 {
894 uint16 major, minor;
895 uint32 caplow, caphigh;
896 NTSTATUS status;
897
898 if (!SERVER_HAS_UNIX_CIFS(c)) {
899 return NT_STATUS_NOT_SUPPORTED;
900 }
901
902 status = cli_unix_extensions_version(c, &major, &minor, &caplow,
903 &caphigh);
904 if (!NT_STATUS_IS_OK(status)) {
905 DEBUG(10, ("cli_force_encryption: cli_unix_extensions_version "
906 "returned %s\n", nt_errstr(status)));
907 return NT_STATUS_UNKNOWN_REVISION;
908 }
909
910 if (!(caplow & CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP)) {
911 return NT_STATUS_UNSUPPORTED_COMPRESSION;
912 }
913
914 if (c->use_kerberos) {
915 return cli_gss_smb_encryption_start(c);
916 }
917 return cli_raw_ntlm_smb_encryption_start(c,
918 username,
919 password,
920 domain);
921 }
reg import